If the tangent to the curve y = x3 at the point P(t, t3) meets the curve again at Q, then the ordinate of the point which divides PQ internally in the ratio 1:2 is:
If the tangent to the curve y = x3 at the point P(t, t3) meets the curve again at Q, then the ordinate of the point which divides PQ internally in the ratio 1:2 is:
Option 1 -
0
Option 2 -
-t3
Option 3 -
-2t3
Option 4 -
2t3
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1 Answer
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Correct Option - 3
Detailed Solution:y = x3
Equation of tangent y – t3 = 3t2 (x – t)
Let again meet the curve at
->t1 = -2t
Required ordinate =
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